The suit says Koch falsely alleged in court filings that Brooksbank had given an improper signal by using his middle finger, assaulted the officer and interfered with his work.

Brooksbank said previously he felt that “justice was served,” when charges were dropped.

Brooksbank seeks over $75,000 in damages, and said he was the target of false arrest, battery and malicious prosecution.

“We do not live in a police state. Mr. Koch needs to be held accountable,” said Brooksbank.

Brooksbank’s attorneys Chris Wiest, Robert Winter Jr. and Tom Bruns said in a news release that they intend to see the sergeant is “held accountable for his misconduct to the fullest extent of the law.”